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Move the lazy_load logic to a Generic function.

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This commit is contained in:
Jordan Petridis 2018-04-06 21:30:03 +03:00
parent d618771125
commit 83abb5a825
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GPG Key ID: CEABAD9F5683B9A6
1 changed files with 28 additions and 11 deletions
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39
hammond-gtk/src/widgets/episode.rs
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@ -383,17 +383,9 @@ pub fn episodes_listbox(pd: Arc<Podcast>, sender: Sender<Action>) -> Result<gtk:
Err(Disconnected) => return glib::Continue(false),
};
let mut idx = 0;
gtk::idle_add(clone!(list, sender => move || {
if idx >= episodes.len() { return glib::Continue(false) }
episodes.get(idx).cloned().map(|ep| {
let widget = EpisodeWidget::new(ep, sender.clone());
list.add(&widget.container);
});
idx += 1;
glib::Continue(true)
lazy_load(episodes, list.clone(), clone!(sender => move |ep| {
let w = EpisodeWidget::new(ep, sender.clone());
w.container.clone()
}));
glib::Continue(false)
@ -401,3 +393,28 @@ pub fn episodes_listbox(pd: Arc<Podcast>, sender: Sender<Action>) -> Result<gtk:
Ok(list)
}
use gtk::{IsA, Widget};
fn lazy_load<T, U, P, Z>(data: Vec<T>, container: Z, mut predicate: P)
where
T: Clone + 'static,
Z: ContainerExt + 'static,
P: FnMut(T) -> U + 'static,
U: IsA<Widget>,
{
let mut idx = 0;
gtk::idle_add(move || {
if idx >= data.len() {
return glib::Continue(false);
}
data.get(idx).cloned().map(|x| {
let widget = predicate(x);
container.add(&widget);
});
idx += 1;
glib::Continue(true)
});
}